Wear 5-TILES is a text messaging app with a keyboard for your Android Wear watch
https://www.youtube.com/watch?v=6tWsehRHHaw
You know what I haven’t once thought since purchasing my ASUS ZenWatch? “Man, I wish this thing had a software keyboard!” Nope, not even once. But someone clearly has, as the developers behind the 5-TILES keyboard for Android smartphones have brought their signature tile-based keyboard to Android Wear users in the form of a messaging app, called Wear 5-TILES.